Home / 112,291.89-154,948.10-66,975.19

Finding the Fourth Proportional to 112,291.89, 154,948.10 and 66,975.19

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Solution

The fourth proportional to 112,291.89, 154,948.10 and 66,975.19 is: 92,416.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,291.89 : 154,948.10 = 66,975.19 : x
  2. Step 2: Convert to fraction form
    112,291.89/154,948.10 = 66,975.19/x
  3. Step 3: Cross multiply
    112,291.89x = 154,948.10 × 66,975.19
  4. Step 4: Simplify right side
    112,291.89x = 10,377,678,437.64
  5. Step 5: Solve for x
    x = 10,377,678,437.64/112,291.89
  6. Step 6: Final answer
    x = 92,416.99

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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.