Home / 155,932.22-215,186.16-87,948.98

Finding the Fourth Proportional to 155,932.22, 215,186.16 and 87,948.98

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Solution

The fourth proportional to 155,932.22, 215,186.16 and 87,948.98 is: 121,369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,932.22 : 215,186.16 = 87,948.98 : x
  2. Step 2: Convert to fraction form
    155,932.22/215,186.16 = 87,948.98/x
  3. Step 3: Cross multiply
    155,932.22x = 215,186.16 × 87,948.98
  4. Step 4: Simplify right side
    155,932.22x = 18,925,402,206.19
  5. Step 5: Solve for x
    x = 18,925,402,206.19/155,932.22
  6. Step 6: Final answer
    x = 121,369.42

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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.