Home / 345,326.61-518,070.03-108,663.12

Finding the Fourth Proportional to 345,326.61, 518,070.03 and 108,663.12

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Solution

The fourth proportional to 345,326.61, 518,070.03 and 108,663.12 is: 163,019.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,326.61 : 518,070.03 = 108,663.12 : x
  2. Step 2: Convert to fraction form
    345,326.61/518,070.03 = 108,663.12/x
  3. Step 3: Cross multiply
    345,326.61x = 518,070.03 × 108,663.12
  4. Step 4: Simplify right side
    345,326.61x = 56,295,105,838.29
  5. Step 5: Solve for x
    x = 56,295,105,838.29/345,326.61
  6. Step 6: Final answer
    x = 163,019.89

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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.