Home / 153,934.90-212,427.94-85,952.93

Finding the Fourth Proportional to 153,934.90, 212,427.94 and 85,952.93

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Solution

The fourth proportional to 153,934.90, 212,427.94 and 85,952.93 is: 118,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,934.90 : 212,427.94 = 85,952.93 : x
  2. Step 2: Convert to fraction form
    153,934.90/212,427.94 = 85,952.93/x
  3. Step 3: Cross multiply
    153,934.90x = 212,427.94 × 85,952.93
  4. Step 4: Simplify right side
    153,934.90x = 18,258,803,856.86
  5. Step 5: Solve for x
    x = 18,258,803,856.86/153,934.90
  6. Step 6: Final answer
    x = 118,613.80

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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.