Home / 115,121.36-172,702.20-52,798.16

Finding the Fourth Proportional to 115,121.36, 172,702.20 and 52,798.16

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Solution

The fourth proportional to 115,121.36, 172,702.20 and 52,798.16 is: 79,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,121.36 : 172,702.20 = 52,798.16 : x
  2. Step 2: Convert to fraction form
    115,121.36/172,702.20 = 52,798.16/x
  3. Step 3: Cross multiply
    115,121.36x = 172,702.20 × 52,798.16
  4. Step 4: Simplify right side
    115,121.36x = 9,118,358,387.95
  5. Step 5: Solve for x
    x = 9,118,358,387.95/115,121.36
  6. Step 6: Final answer
    x = 79,206.49

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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.