Home / 145,321.12-218,023.36-61,037.93

Finding the Fourth Proportional to 145,321.12, 218,023.36 and 61,037.93

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Solution

The fourth proportional to 145,321.12, 218,023.36 and 61,037.93 is: 91,574.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,321.12 : 218,023.36 = 61,037.93 : x
  2. Step 2: Convert to fraction form
    145,321.12/218,023.36 = 61,037.93/x
  3. Step 3: Cross multiply
    145,321.12x = 218,023.36 × 61,037.93
  4. Step 4: Simplify right side
    145,321.12x = 13,307,695,321.85
  5. Step 5: Solve for x
    x = 13,307,695,321.85/145,321.12
  6. Step 6: Final answer
    x = 91,574.41

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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.