Home / 189,463.16-261,344.40-112,931.26

Finding the Fourth Proportional to 189,463.16, 261,344.40 and 112,931.26

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Solution

The fourth proportional to 189,463.16, 261,344.40 and 112,931.26 is: 155,776.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,463.16 : 261,344.40 = 112,931.26 : x
  2. Step 2: Convert to fraction form
    189,463.16/261,344.40 = 112,931.26/x
  3. Step 3: Cross multiply
    189,463.16x = 261,344.40 × 112,931.26
  4. Step 4: Simplify right side
    189,463.16x = 29,513,952,385.94
  5. Step 5: Solve for x
    x = 29,513,952,385.94/189,463.16
  6. Step 6: Final answer
    x = 155,776.73

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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.