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Finding the Fourth Proportional to 131,703.52, 181,751.16 and 74,355.28

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Solution

The fourth proportional to 131,703.52, 181,751.16 and 74,355.28 is: 102,610.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,703.52 : 181,751.16 = 74,355.28 : x
  2. Step 2: Convert to fraction form
    131,703.52/181,751.16 = 74,355.28/x
  3. Step 3: Cross multiply
    131,703.52x = 181,751.16 × 74,355.28
  4. Step 4: Simplify right side
    131,703.52x = 13,514,158,392.12
  5. Step 5: Solve for x
    x = 13,514,158,392.12/131,703.52
  6. Step 6: Final answer
    x = 102,610.46

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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.