Home / 112,555.03-155,319.45-61,557.55

Finding the Fourth Proportional to 112,555.03, 155,319.45 and 61,557.55

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Solution

The fourth proportional to 112,555.03, 155,319.45 and 61,557.55 is: 84,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,555.03 : 155,319.45 = 61,557.55 : x
  2. Step 2: Convert to fraction form
    112,555.03/155,319.45 = 61,557.55/x
  3. Step 3: Cross multiply
    112,555.03x = 155,319.45 × 61,557.55
  4. Step 4: Simplify right side
    112,555.03x = 9,561,084,809.35
  5. Step 5: Solve for x
    x = 9,561,084,809.35/112,555.03
  6. Step 6: Final answer
    x = 84,945.87

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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.