Home / 160,157.94-240,381.80-85,341.28

Finding the Fourth Proportional to 160,157.94, 240,381.80 and 85,341.28

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Solution

The fourth proportional to 160,157.94, 240,381.80 and 85,341.28 is: 128,089.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,157.94 : 240,381.80 = 85,341.28 : x
  2. Step 2: Convert to fraction form
    160,157.94/240,381.80 = 85,341.28/x
  3. Step 3: Cross multiply
    160,157.94x = 240,381.80 × 85,341.28
  4. Step 4: Simplify right side
    160,157.94x = 20,514,490,500.70
  5. Step 5: Solve for x
    x = 20,514,490,500.70/160,157.94
  6. Step 6: Final answer
    x = 128,089.13

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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.