Home / 145,964.32-218,854.68-61,681.12

Finding the Fourth Proportional to 145,964.32, 218,854.68 and 61,681.12

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Solution

The fourth proportional to 145,964.32, 218,854.68 and 61,681.12 is: 92,482.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,964.32 : 218,854.68 = 61,681.12 : x
  2. Step 2: Convert to fraction form
    145,964.32/218,854.68 = 61,681.12/x
  3. Step 3: Cross multiply
    145,964.32x = 218,854.68 × 61,681.12
  4. Step 4: Simplify right side
    145,964.32x = 13,499,201,779.64
  5. Step 5: Solve for x
    x = 13,499,201,779.64/145,964.32
  6. Step 6: Final answer
    x = 92,482.89

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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.