Home / 126,147.07-174,088.53-72,434.35

Finding the Fourth Proportional to 126,147.07, 174,088.53 and 72,434.35

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Solution

The fourth proportional to 126,147.07, 174,088.53 and 72,434.35 is: 99,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,147.07 : 174,088.53 = 72,434.35 : x
  2. Step 2: Convert to fraction form
    126,147.07/174,088.53 = 72,434.35/x
  3. Step 3: Cross multiply
    126,147.07x = 174,088.53 × 72,434.35
  4. Step 4: Simplify right side
    126,147.07x = 12,609,988,280.39
  5. Step 5: Solve for x
    x = 12,609,988,280.39/126,147.07
  6. Step 6: Final answer
    x = 99,962.60

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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.