Home / 112,686.20-155,506.95-61,698.93

Finding the Fourth Proportional to 112,686.20, 155,506.95 and 61,698.93

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Solution

The fourth proportional to 112,686.20, 155,506.95 and 61,698.93 is: 85,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,686.20 : 155,506.95 = 61,698.93 : x
  2. Step 2: Convert to fraction form
    112,686.20/155,506.95 = 61,698.93/x
  3. Step 3: Cross multiply
    112,686.20x = 155,506.95 × 61,698.93
  4. Step 4: Simplify right side
    112,686.20x = 9,594,612,422.56
  5. Step 5: Solve for x
    x = 9,594,612,422.56/112,686.20
  6. Step 6: Final answer
    x = 85,144.52

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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.