Home / 118,490.16-163,516.05-64,775.22

Finding the Fourth Proportional to 118,490.16, 163,516.05 and 64,775.22

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Solution

The fourth proportional to 118,490.16, 163,516.05 and 64,775.22 is: 89,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,490.16 : 163,516.05 = 64,775.22 : x
  2. Step 2: Convert to fraction form
    118,490.16/163,516.05 = 64,775.22/x
  3. Step 3: Cross multiply
    118,490.16x = 163,516.05 × 64,775.22
  4. Step 4: Simplify right side
    118,490.16x = 10,591,788,112.28
  5. Step 5: Solve for x
    x = 10,591,788,112.28/118,490.16
  6. Step 6: Final answer
    x = 89,389.60

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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.