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Finding the Fourth Proportional to 130,045.50, 195,068.25 and 31,549.50

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Solution

The fourth proportional to 130,045.50, 195,068.25 and 31,549.50 is: 47,324.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,045.50 : 195,068.25 = 31,549.50 : x
  2. Step 2: Convert to fraction form
    130,045.50/195,068.25 = 31,549.50/x
  3. Step 3: Cross multiply
    130,045.50x = 195,068.25 × 31,549.50
  4. Step 4: Simplify right side
    130,045.50x = 6,154,305,753.38
  5. Step 5: Solve for x
    x = 6,154,305,753.38/130,045.50
  6. Step 6: Final answer
    x = 47,324.25

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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.