Home / 189,399.04-261,366.68-103,355.16

Finding the Fourth Proportional to 189,399.04, 261,366.68 and 103,355.16

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Solution

The fourth proportional to 189,399.04, 261,366.68 and 103,355.16 is: 142,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,399.04 : 261,366.68 = 103,355.16 : x
  2. Step 2: Convert to fraction form
    189,399.04/261,366.68 = 103,355.16/x
  3. Step 3: Cross multiply
    189,399.04x = 261,366.68 × 103,355.16
  4. Step 4: Simplify right side
    189,399.04x = 27,013,595,030.07
  5. Step 5: Solve for x
    x = 27,013,595,030.07/189,399.04
  6. Step 6: Final answer
    x = 142,627.94

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1.5x scale

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.