Home / 145,748.91-218,129.57-89,624.57

Finding the Fourth Proportional to 145,748.91, 218,129.57 and 89,624.57

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Solution

The fourth proportional to 145,748.91, 218,129.57 and 89,624.57 is: 134,133.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,748.91 : 218,129.57 = 89,624.57 : x
  2. Step 2: Convert to fraction form
    145,748.91/218,129.57 = 89,624.57/x
  3. Step 3: Cross multiply
    145,748.91x = 218,129.57 × 89,624.57
  4. Step 4: Simplify right side
    145,748.91x = 19,549,767,824.89
  5. Step 5: Solve for x
    x = 19,549,767,824.89/145,748.91
  6. Step 6: Final answer
    x = 134,133.20

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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.