Home / 121,895.28-182,872.08-42,988.32

Finding the Fourth Proportional to 121,895.28, 182,872.08 and 42,988.32

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Solution

The fourth proportional to 121,895.28, 182,872.08 and 42,988.32 is: 64,492.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,895.28 : 182,872.08 = 42,988.32 : x
  2. Step 2: Convert to fraction form
    121,895.28/182,872.08 = 42,988.32/x
  3. Step 3: Cross multiply
    121,895.28x = 182,872.08 × 42,988.32
  4. Step 4: Simplify right side
    121,895.28x = 7,861,363,494.11
  5. Step 5: Solve for x
    x = 7,861,363,494.11/121,895.28
  6. Step 6: Final answer
    x = 64,492.76

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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.