Home / 179,156.96-268,839.28-90,417.40

Finding the Fourth Proportional to 179,156.96, 268,839.28 and 90,417.40

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Solution

The fourth proportional to 179,156.96, 268,839.28 and 90,417.40 is: 135,678.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,156.96 : 268,839.28 = 90,417.40 : x
  2. Step 2: Convert to fraction form
    179,156.96/268,839.28 = 90,417.40/x
  3. Step 3: Cross multiply
    179,156.96x = 268,839.28 × 90,417.40
  4. Step 4: Simplify right side
    179,156.96x = 24,307,748,715.47
  5. Step 5: Solve for x
    x = 24,307,748,715.47/179,156.96
  6. Step 6: Final answer
    x = 135,678.51

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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.