Home / 161,945.34-223,484.88-90,330

Finding the Fourth Proportional to 161,945.34, 223,484.88 and 90,330

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Solution

The fourth proportional to 161,945.34, 223,484.88 and 90,330 is: 124,655.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,945.34 : 223,484.88 = 90,330 : x
  2. Step 2: Convert to fraction form
    161,945.34/223,484.88 = 90,330/x
  3. Step 3: Cross multiply
    161,945.34x = 223,484.88 × 90,330
  4. Step 4: Simplify right side
    161,945.34x = 20,187,389,210.40
  5. Step 5: Solve for x
    x = 20,187,389,210.40/161,945.34
  6. Step 6: Final answer
    x = 124,655.57

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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.