Home / 115,030.32-172,574.12-91,426.92

Finding the Fourth Proportional to 115,030.32, 172,574.12 and 91,426.92

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Solution

The fourth proportional to 115,030.32, 172,574.12 and 91,426.92 is: 137,163.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,030.32 : 172,574.12 = 91,426.92 : x
  2. Step 2: Convert to fraction form
    115,030.32/172,574.12 = 91,426.92/x
  3. Step 3: Cross multiply
    115,030.32x = 172,574.12 × 91,426.92
  4. Step 4: Simplify right side
    115,030.32x = 15,777,920,263.31
  5. Step 5: Solve for x
    x = 15,777,920,263.31/115,030.32
  6. Step 6: Final answer
    x = 137,163.14

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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.