Home / 115,069.12-158,814.30-72,064.90

Finding the Fourth Proportional to 115,069.12, 158,814.30 and 72,064.90

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Solution

The fourth proportional to 115,069.12, 158,814.30 and 72,064.90 is: 99,461.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,069.12 : 158,814.30 = 72,064.90 : x
  2. Step 2: Convert to fraction form
    115,069.12/158,814.30 = 72,064.90/x
  3. Step 3: Cross multiply
    115,069.12x = 158,814.30 × 72,064.90
  4. Step 4: Simplify right side
    115,069.12x = 11,444,937,116.83
  5. Step 5: Solve for x
    x = 11,444,937,116.83/115,069.12
  6. Step 6: Final answer
    x = 99,461.41

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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.