Home / 156,987.18-235,543.65-57,154.28

Finding the Fourth Proportional to 156,987.18, 235,543.65 and 57,154.28

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Solution

The fourth proportional to 156,987.18, 235,543.65 and 57,154.28 is: 85,754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.18 : 235,543.65 = 57,154.28 : x
  2. Step 2: Convert to fraction form
    156,987.18/235,543.65 = 57,154.28/x
  3. Step 3: Cross multiply
    156,987.18x = 235,543.65 × 57,154.28
  4. Step 4: Simplify right side
    156,987.18x = 13,462,326,332.28
  5. Step 5: Solve for x
    x = 13,462,326,332.28/156,987.18
  6. Step 6: Final answer
    x = 85,754.30

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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.