Home / 127,931.56-176,543.78-74,225.80

Finding the Fourth Proportional to 127,931.56, 176,543.78 and 74,225.80

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Solution

The fourth proportional to 127,931.56, 176,543.78 and 74,225.80 is: 102,430.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,931.56 : 176,543.78 = 74,225.80 : x
  2. Step 2: Convert to fraction form
    127,931.56/176,543.78 = 74,225.80/x
  3. Step 3: Cross multiply
    127,931.56x = 176,543.78 × 74,225.80
  4. Step 4: Simplify right side
    127,931.56x = 13,104,103,305.52
  5. Step 5: Solve for x
    x = 13,104,103,305.52/127,931.56
  6. Step 6: Final answer
    x = 102,430.58

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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.