Home / 119,807.91-165,354.48-72,087.57

Finding the Fourth Proportional to 119,807.91, 165,354.48 and 72,087.57

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Solution

The fourth proportional to 119,807.91, 165,354.48 and 72,087.57 is: 99,492.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,807.91 : 165,354.48 = 72,087.57 : x
  2. Step 2: Convert to fraction form
    119,807.91/165,354.48 = 72,087.57/x
  3. Step 3: Cross multiply
    119,807.91x = 165,354.48 × 72,087.57
  4. Step 4: Simplify right side
    119,807.91x = 11,920,002,651.81
  5. Step 5: Solve for x
    x = 11,920,002,651.81/119,807.91
  6. Step 6: Final answer
    x = 99,492.62

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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.