Home / 90,934.65-136,275.54-79,064.10

Finding the Fourth Proportional to 90,934.65, 136,275.54 and 79,064.10

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Solution

The fourth proportional to 90,934.65, 136,275.54 and 79,064.10 is: 118,486.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,934.65 : 136,275.54 = 79,064.10 : x
  2. Step 2: Convert to fraction form
    90,934.65/136,275.54 = 79,064.10/x
  3. Step 3: Cross multiply
    90,934.65x = 136,275.54 × 79,064.10
  4. Step 4: Simplify right side
    90,934.65x = 10,774,502,922.11
  5. Step 5: Solve for x
    x = 10,774,502,922.11/90,934.65
  6. Step 6: Final answer
    x = 118,486.22

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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.