Home / 345,177.14-517,795.28-105,345.05

Finding the Fourth Proportional to 345,177.14, 517,795.28 and 105,345.05

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Solution

The fourth proportional to 345,177.14, 517,795.28 and 105,345.05 is: 158,026.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,177.14 : 517,795.28 = 105,345.05 : x
  2. Step 2: Convert to fraction form
    345,177.14/517,795.28 = 105,345.05/x
  3. Step 3: Cross multiply
    345,177.14x = 517,795.28 × 105,345.05
  4. Step 4: Simplify right side
    345,177.14x = 54,547,169,134.64
  5. Step 5: Solve for x
    x = 54,547,169,134.64/345,177.14
  6. Step 6: Final answer
    x = 158,026.60

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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.