Home / 123,712.12-185,569.32-39,485.08

Finding the Fourth Proportional to 123,712.12, 185,569.32 and 39,485.08

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Solution

The fourth proportional to 123,712.12, 185,569.32 and 39,485.08 is: 59,227.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,712.12 : 185,569.32 = 39,485.08 : x
  2. Step 2: Convert to fraction form
    123,712.12/185,569.32 = 39,485.08/x
  3. Step 3: Cross multiply
    123,712.12x = 185,569.32 × 39,485.08
  4. Step 4: Simplify right side
    123,712.12x = 7,327,219,445.75
  5. Step 5: Solve for x
    x = 7,327,219,445.75/123,712.12
  6. Step 6: Final answer
    x = 59,227.98

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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.