Home / 145,931.55-218,768.13-57,248.70

Finding the Fourth Proportional to 145,931.55, 218,768.13 and 57,248.70

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Solution

The fourth proportional to 145,931.55, 218,768.13 and 57,248.70 is: 85,822.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,931.55 : 218,768.13 = 57,248.70 : x
  2. Step 2: Convert to fraction form
    145,931.55/218,768.13 = 57,248.70/x
  3. Step 3: Cross multiply
    145,931.55x = 218,768.13 × 57,248.70
  4. Step 4: Simplify right side
    145,931.55x = 12,524,191,043.93
  5. Step 5: Solve for x
    x = 12,524,191,043.93/145,931.55
  6. Step 6: Final answer
    x = 85,822.37

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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.