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Finding the Fourth Proportional to 172,980.06, 238,707.06 and 101,407.76

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Solution

The fourth proportional to 172,980.06, 238,707.06 and 101,407.76 is: 139,939.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,980.06 : 238,707.06 = 101,407.76 : x
  2. Step 2: Convert to fraction form
    172,980.06/238,707.06 = 101,407.76/x
  3. Step 3: Cross multiply
    172,980.06x = 238,707.06 × 101,407.76
  4. Step 4: Simplify right side
    172,980.06x = 24,206,748,250.79
  5. Step 5: Solve for x
    x = 24,206,748,250.79/172,980.06
  6. Step 6: Final answer
    x = 139,939.53

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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.