Home / 144,885.60-217,328.40-39,715.20

Finding the Fourth Proportional to 144,885.60, 217,328.40 and 39,715.20

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Solution

The fourth proportional to 144,885.60, 217,328.40 and 39,715.20 is: 59,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,885.60 : 217,328.40 = 39,715.20 : x
  2. Step 2: Convert to fraction form
    144,885.60/217,328.40 = 39,715.20/x
  3. Step 3: Cross multiply
    144,885.60x = 217,328.40 × 39,715.20
  4. Step 4: Simplify right side
    144,885.60x = 8,631,240,871.68
  5. Step 5: Solve for x
    x = 8,631,240,871.68/144,885.60
  6. Step 6: Final answer
    x = 59,572.80

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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.