Home / 161,748.63-223,210.10-90,127.11

Finding the Fourth Proportional to 161,748.63, 223,210.10 and 90,127.11

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Solution

The fourth proportional to 161,748.63, 223,210.10 and 90,127.11 is: 124,373.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,748.63 : 223,210.10 = 90,127.11 : x
  2. Step 2: Convert to fraction form
    161,748.63/223,210.10 = 90,127.11/x
  3. Step 3: Cross multiply
    161,748.63x = 223,210.10 × 90,127.11
  4. Step 4: Simplify right side
    161,748.63x = 20,117,280,785.18
  5. Step 5: Solve for x
    x = 20,117,280,785.18/161,748.63
  6. Step 6: Final answer
    x = 124,373.73

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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.