Home / 133,049.13-183,607.79-90,681.67

Finding the Fourth Proportional to 133,049.13, 183,607.79 and 90,681.67

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Solution

The fourth proportional to 133,049.13, 183,607.79 and 90,681.67 is: 125,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,049.13 : 183,607.79 = 90,681.67 : x
  2. Step 2: Convert to fraction form
    133,049.13/183,607.79 = 90,681.67/x
  3. Step 3: Cross multiply
    133,049.13x = 183,607.79 × 90,681.67
  4. Step 4: Simplify right side
    133,049.13x = 16,649,861,248.91
  5. Step 5: Solve for x
    x = 16,649,861,248.91/133,049.13
  6. Step 6: Final answer
    x = 125,140.70

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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.