Home / 315,931.13-473,896.69-126,476.79

Finding the Fourth Proportional to 315,931.13, 473,896.69 and 126,476.79

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Solution

The fourth proportional to 315,931.13, 473,896.69 and 126,476.79 is: 189,715.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,931.13 : 473,896.69 = 126,476.79 : x
  2. Step 2: Convert to fraction form
    315,931.13/473,896.69 = 126,476.79/x
  3. Step 3: Cross multiply
    315,931.13x = 473,896.69 × 126,476.79
  4. Step 4: Simplify right side
    315,931.13x = 59,936,929,773.34
  5. Step 5: Solve for x
    x = 59,936,929,773.34/315,931.13
  6. Step 6: Final answer
    x = 189,715.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.