Home / 103,178.04-142,325.19-64,876.86

Finding the Fourth Proportional to 103,178.04, 142,325.19 and 64,876.86

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Solution

The fourth proportional to 103,178.04, 142,325.19 and 64,876.86 is: 89,492.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,178.04 : 142,325.19 = 64,876.86 : x
  2. Step 2: Convert to fraction form
    103,178.04/142,325.19 = 64,876.86/x
  3. Step 3: Cross multiply
    103,178.04x = 142,325.19 × 64,876.86
  4. Step 4: Simplify right side
    103,178.04x = 9,233,611,426.10
  5. Step 5: Solve for x
    x = 9,233,611,426.10/103,178.04
  6. Step 6: Final answer
    x = 89,492.02

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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.