Home / 172,085.12-237,411.09-126,870.60

Finding the Fourth Proportional to 172,085.12, 237,411.09 and 126,870.60

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Solution

The fourth proportional to 172,085.12, 237,411.09 and 126,870.60 is: 175,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,085.12 : 237,411.09 = 126,870.60 : x
  2. Step 2: Convert to fraction form
    172,085.12/237,411.09 = 126,870.60/x
  3. Step 3: Cross multiply
    172,085.12x = 237,411.09 × 126,870.60
  4. Step 4: Simplify right side
    172,085.12x = 30,120,487,434.95
  5. Step 5: Solve for x
    x = 30,120,487,434.95/172,085.12
  6. Step 6: Final answer
    x = 175,032.50

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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.