Home / 145,113.50-200,331.77-112,775.87

Finding the Fourth Proportional to 145,113.50, 200,331.77 and 112,775.87

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Solution

The fourth proportional to 145,113.50, 200,331.77 and 112,775.87 is: 155,689.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,113.50 : 200,331.77 = 112,775.87 : x
  2. Step 2: Convert to fraction form
    145,113.50/200,331.77 = 112,775.87/x
  3. Step 3: Cross multiply
    145,113.50x = 200,331.77 × 112,775.87
  4. Step 4: Simplify right side
    145,113.50x = 22,592,588,084.85
  5. Step 5: Solve for x
    x = 22,592,588,084.85/145,113.50
  6. Step 6: Final answer
    x = 155,689.09

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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.