Home / 161,749.49-223,211.28-90,127.99

Finding the Fourth Proportional to 161,749.49, 223,211.28 and 90,127.99

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Solution

The fourth proportional to 161,749.49, 223,211.28 and 90,127.99 is: 124,374.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,749.49 : 223,211.28 = 90,127.99 : x
  2. Step 2: Convert to fraction form
    161,749.49/223,211.28 = 90,127.99/x
  3. Step 3: Cross multiply
    161,749.49x = 223,211.28 × 90,127.99
  4. Step 4: Simplify right side
    161,749.49x = 20,117,582,895.67
  5. Step 5: Solve for x
    x = 20,117,582,895.67/161,749.49
  6. Step 6: Final answer
    x = 124,374.94

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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.