Home / 142,575.46-213,765.98-72,319.30

Finding the Fourth Proportional to 142,575.46, 213,765.98 and 72,319.30

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Solution

The fourth proportional to 142,575.46, 213,765.98 and 72,319.30 is: 108,429.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,575.46 : 213,765.98 = 72,319.30 : x
  2. Step 2: Convert to fraction form
    142,575.46/213,765.98 = 72,319.30/x
  3. Step 3: Cross multiply
    142,575.46x = 213,765.98 × 72,319.30
  4. Step 4: Simplify right side
    142,575.46x = 15,459,406,037.41
  5. Step 5: Solve for x
    x = 15,459,406,037.41/142,575.46
  6. Step 6: Final answer
    x = 108,429.64

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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.