Home / 105,244.08-145,229.18-57,487.28

Finding the Fourth Proportional to 105,244.08, 145,229.18 and 57,487.28

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Solution

The fourth proportional to 105,244.08, 145,229.18 and 57,487.28 is: 79,328.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,244.08 : 145,229.18 = 57,487.28 : x
  2. Step 2: Convert to fraction form
    105,244.08/145,229.18 = 57,487.28/x
  3. Step 3: Cross multiply
    105,244.08x = 145,229.18 × 57,487.28
  4. Step 4: Simplify right side
    105,244.08x = 8,348,830,534.83
  5. Step 5: Solve for x
    x = 8,348,830,534.83/105,244.08
  6. Step 6: Final answer
    x = 79,328.27

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1.5x scale

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.