Home / 141,931.04-212,891.90-57,666.20

Finding the Fourth Proportional to 141,931.04, 212,891.90 and 57,666.20

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Solution

The fourth proportional to 141,931.04, 212,891.90 and 57,666.20 is: 86,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,931.04 : 212,891.90 = 57,666.20 : x
  2. Step 2: Convert to fraction form
    141,931.04/212,891.90 = 57,666.20/x
  3. Step 3: Cross multiply
    141,931.04x = 212,891.90 × 57,666.20
  4. Step 4: Simplify right side
    141,931.04x = 12,276,665,530.99
  5. Step 5: Solve for x
    x = 12,276,665,530.99/141,931.04
  6. Step 6: Final answer
    x = 86,497.40

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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.