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Finding the Fourth Proportional to 119,360.40, 164,720.81 and 65,648.88

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Solution

The fourth proportional to 119,360.40, 164,720.81 and 65,648.88 is: 90,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,360.40 : 164,720.81 = 65,648.88 : x
  2. Step 2: Convert to fraction form
    119,360.40/164,720.81 = 65,648.88/x
  3. Step 3: Cross multiply
    119,360.40x = 164,720.81 × 65,648.88
  4. Step 4: Simplify right side
    119,360.40x = 10,813,736,689.19
  5. Step 5: Solve for x
    x = 10,813,736,689.19/119,360.40
  6. Step 6: Final answer
    x = 90,597.36

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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.