Home / 90,756.48-136,154.16-38,135.64

Finding the Fourth Proportional to 90,756.48, 136,154.16 and 38,135.64

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Solution

The fourth proportional to 90,756.48, 136,154.16 and 38,135.64 is: 57,211.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,756.48 : 136,154.16 = 38,135.64 : x
  2. Step 2: Convert to fraction form
    90,756.48/136,154.16 = 38,135.64/x
  3. Step 3: Cross multiply
    90,756.48x = 136,154.16 × 38,135.64
  4. Step 4: Simplify right side
    90,756.48x = 5,192,326,030.26
  5. Step 5: Solve for x
    x = 5,192,326,030.26/90,756.48
  6. Step 6: Final answer
    x = 57,211.63

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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.