Home / 160,123.48-240,335.70-81,294.28

Finding the Fourth Proportional to 160,123.48, 240,335.70 and 81,294.28

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Solution

The fourth proportional to 160,123.48, 240,335.70 and 81,294.28 is: 122,017.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,123.48 : 240,335.70 = 81,294.28 : x
  2. Step 2: Convert to fraction form
    160,123.48/240,335.70 = 81,294.28/x
  3. Step 3: Cross multiply
    160,123.48x = 240,335.70 × 81,294.28
  4. Step 4: Simplify right side
    160,123.48x = 19,537,917,689.80
  5. Step 5: Solve for x
    x = 19,537,917,689.80/160,123.48
  6. Step 6: Final answer
    x = 122,017.82

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1.5x scale

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.