Home / 345,587.13-518,302.94-123,971.13

Finding the Fourth Proportional to 345,587.13, 518,302.94 and 123,971.13

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Solution

The fourth proportional to 345,587.13, 518,302.94 and 123,971.13 is: 185,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,587.13 : 518,302.94 = 123,971.13 : x
  2. Step 2: Convert to fraction form
    345,587.13/518,302.94 = 123,971.13/x
  3. Step 3: Cross multiply
    345,587.13x = 518,302.94 × 123,971.13
  4. Step 4: Simplify right side
    345,587.13x = 64,254,600,534.27
  5. Step 5: Solve for x
    x = 64,254,600,534.27/345,587.13
  6. Step 6: Final answer
    x = 185,928.80

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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.