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Finding the Fourth Proportional to 119,420.22, 164,608.66 and 90,646.14

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Solution

The fourth proportional to 119,420.22, 164,608.66 and 90,646.14 is: 124,946.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,420.22 : 164,608.66 = 90,646.14 : x
  2. Step 2: Convert to fraction form
    119,420.22/164,608.66 = 90,646.14/x
  3. Step 3: Cross multiply
    119,420.22x = 164,608.66 × 90,646.14
  4. Step 4: Simplify right side
    119,420.22x = 14,921,138,934.35
  5. Step 5: Solve for x
    x = 14,921,138,934.35/119,420.22
  6. Step 6: Final answer
    x = 124,946.50

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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.