Home / 145,640.16-218,460.15-83,266.92

Finding the Fourth Proportional to 145,640.16, 218,460.15 and 83,266.92

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Solution

The fourth proportional to 145,640.16, 218,460.15 and 83,266.92 is: 124,900.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,640.16 : 218,460.15 = 83,266.92 : x
  2. Step 2: Convert to fraction form
    145,640.16/218,460.15 = 83,266.92/x
  3. Step 3: Cross multiply
    145,640.16x = 218,460.15 × 83,266.92
  4. Step 4: Simplify right side
    145,640.16x = 18,190,503,833.24
  5. Step 5: Solve for x
    x = 18,190,503,833.24/145,640.16
  6. Step 6: Final answer
    x = 124,900.33

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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.