Home / 157,899.72-218,047.08-101,409.50

Finding the Fourth Proportional to 157,899.72, 218,047.08 and 101,409.50

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Solution

The fourth proportional to 157,899.72, 218,047.08 and 101,409.50 is: 140,038.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,899.72 : 218,047.08 = 101,409.50 : x
  2. Step 2: Convert to fraction form
    157,899.72/218,047.08 = 101,409.50/x
  3. Step 3: Cross multiply
    157,899.72x = 218,047.08 × 101,409.50
  4. Step 4: Simplify right side
    157,899.72x = 22,112,045,359.26
  5. Step 5: Solve for x
    x = 22,112,045,359.26/157,899.72
  6. Step 6: Final answer
    x = 140,038.53

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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.