Home / 185,979.40-278,979.90-52,869.40

Finding the Fourth Proportional to 185,979.40, 278,979.90 and 52,869.40

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Solution

The fourth proportional to 185,979.40, 278,979.90 and 52,869.40 is: 79,307.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,979.40 : 278,979.90 = 52,869.40 : x
  2. Step 2: Convert to fraction form
    185,979.40/278,979.90 = 52,869.40/x
  3. Step 3: Cross multiply
    185,979.40x = 278,979.90 × 52,869.40
  4. Step 4: Simplify right side
    185,979.40x = 14,749,499,925.06
  5. Step 5: Solve for x
    x = 14,749,499,925.06/185,979.40
  6. Step 6: Final answer
    x = 79,307.17

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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.