Home / 145,242.45-217,459.60-74,011.52

Finding the Fourth Proportional to 145,242.45, 217,459.60 and 74,011.52

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Solution

The fourth proportional to 145,242.45, 217,459.60 and 74,011.52 is: 110,811.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,242.45 : 217,459.60 = 74,011.52 : x
  2. Step 2: Convert to fraction form
    145,242.45/217,459.60 = 74,011.52/x
  3. Step 3: Cross multiply
    145,242.45x = 217,459.60 × 74,011.52
  4. Step 4: Simplify right side
    145,242.45x = 16,094,516,309.53
  5. Step 5: Solve for x
    x = 16,094,516,309.53/145,242.45
  6. Step 6: Final answer
    x = 110,811.38

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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.