Home / 153,844.72-212,332.79-99,463.75

Finding the Fourth Proportional to 153,844.72, 212,332.79 and 99,463.75

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Solution

The fourth proportional to 153,844.72, 212,332.79 and 99,463.75 is: 137,277.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,844.72 : 212,332.79 = 99,463.75 : x
  2. Step 2: Convert to fraction form
    153,844.72/212,332.79 = 99,463.75/x
  3. Step 3: Cross multiply
    153,844.72x = 212,332.79 × 99,463.75
  4. Step 4: Simplify right side
    153,844.72x = 21,119,415,259.19
  5. Step 5: Solve for x
    x = 21,119,415,259.19/153,844.72
  6. Step 6: Final answer
    x = 137,277.48

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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.