Home / 125,126.33-172,655.21-71,415.23

Finding the Fourth Proportional to 125,126.33, 172,655.21 and 71,415.23

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Solution

The fourth proportional to 125,126.33, 172,655.21 and 71,415.23 is: 98,542.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,126.33 : 172,655.21 = 71,415.23 : x
  2. Step 2: Convert to fraction form
    125,126.33/172,655.21 = 71,415.23/x
  3. Step 3: Cross multiply
    125,126.33x = 172,655.21 × 71,415.23
  4. Step 4: Simplify right side
    125,126.33x = 12,330,210,312.50
  5. Step 5: Solve for x
    x = 12,330,210,312.50/125,126.33
  6. Step 6: Final answer
    x = 98,542.10

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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.