Home / 147,931.96-204,146.13-79,948.71

Finding the Fourth Proportional to 147,931.96, 204,146.13 and 79,948.71

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Solution

The fourth proportional to 147,931.96, 204,146.13 and 79,948.71 is: 110,329.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,931.96 : 204,146.13 = 79,948.71 : x
  2. Step 2: Convert to fraction form
    147,931.96/204,146.13 = 79,948.71/x
  3. Step 3: Cross multiply
    147,931.96x = 204,146.13 × 79,948.71
  4. Step 4: Simplify right side
    147,931.96x = 16,321,219,744.99
  5. Step 5: Solve for x
    x = 16,321,219,744.99/147,931.96
  6. Step 6: Final answer
    x = 110,329.23

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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.