Home / 136,966,901.04-189,171,406.03-90,133,054.71

Finding the Fourth Proportional to 136,966,901.04, 189,171,406.03 and 90,133,054.71

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Solution

The fourth proportional to 136,966,901.04, 189,171,406.03 and 90,133,054.71 is: 124,486,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,966,901.04 : 189,171,406.03 = 90,133,054.71 : x
  2. Step 2: Convert to fraction form
    136,966,901.04/189,171,406.03 = 90,133,054.71/x
  3. Step 3: Cross multiply
    136,966,901.04x = 189,171,406.03 × 90,133,054.71
  4. Step 4: Simplify right side
    136,966,901.04x = 17,050,596,689,742,544
  5. Step 5: Solve for x
    x = 17,050,596,689,742,544/136,966,901.04
  6. Step 6: Final answer
    x = 124,486,985.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.