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Finding the Fourth Proportional to 153,894.60, 212,462.88 and 117,308.82

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Solution

The fourth proportional to 153,894.60, 212,462.88 and 117,308.82 is: 161,953.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,894.60 : 212,462.88 = 117,308.82 : x
  2. Step 2: Convert to fraction form
    153,894.60/212,462.88 = 117,308.82/x
  3. Step 3: Cross multiply
    153,894.60x = 212,462.88 × 117,308.82
  4. Step 4: Simplify right side
    153,894.60x = 24,923,769,746.60
  5. Step 5: Solve for x
    x = 24,923,769,746.60/153,894.60
  6. Step 6: Final answer
    x = 161,953.50

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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.