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Finding the Fourth Proportional to 172,756.98, 238,412.75 and 101,160.07

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Solution

The fourth proportional to 172,756.98, 238,412.75 and 101,160.07 is: 139,605.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,756.98 : 238,412.75 = 101,160.07 : x
  2. Step 2: Convert to fraction form
    172,756.98/238,412.75 = 101,160.07/x
  3. Step 3: Cross multiply
    172,756.98x = 238,412.75 × 101,160.07
  4. Step 4: Simplify right side
    172,756.98x = 24,117,850,478.89
  5. Step 5: Solve for x
    x = 24,117,850,478.89/172,756.98
  6. Step 6: Final answer
    x = 139,605.65

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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.