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Finding the Fourth Proportional to 163,030.63, 224,995.31 and 90,440.69

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Solution

The fourth proportional to 163,030.63, 224,995.31 and 90,440.69 is: 124,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,030.63 : 224,995.31 = 90,440.69 : x
  2. Step 2: Convert to fraction form
    163,030.63/224,995.31 = 90,440.69/x
  3. Step 3: Cross multiply
    163,030.63x = 224,995.31 × 90,440.69
  4. Step 4: Simplify right side
    163,030.63x = 20,348,730,353.87
  5. Step 5: Solve for x
    x = 20,348,730,353.87/163,030.63
  6. Step 6: Final answer
    x = 124,815.38

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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.