Home / 128,229.48-176,957.46-74,548.35

Finding the Fourth Proportional to 128,229.48, 176,957.46 and 74,548.35

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Solution

The fourth proportional to 128,229.48, 176,957.46 and 74,548.35 is: 102,877.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,229.48 : 176,957.46 = 74,548.35 : x
  2. Step 2: Convert to fraction form
    128,229.48/176,957.46 = 74,548.35/x
  3. Step 3: Cross multiply
    128,229.48x = 176,957.46 × 74,548.35
  4. Step 4: Simplify right side
    128,229.48x = 13,191,886,663.19
  5. Step 5: Solve for x
    x = 13,191,886,663.19/128,229.48
  6. Step 6: Final answer
    x = 102,877.18

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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.