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Finding the Fourth Proportional to 106,776.89, 147,389.22 and 61,472.93

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Solution

The fourth proportional to 106,776.89, 147,389.22 and 61,472.93 is: 84,854.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,776.89 : 147,389.22 = 61,472.93 : x
  2. Step 2: Convert to fraction form
    106,776.89/147,389.22 = 61,472.93/x
  3. Step 3: Cross multiply
    106,776.89x = 147,389.22 × 61,472.93
  4. Step 4: Simplify right side
    106,776.89x = 9,060,447,388.05
  5. Step 5: Solve for x
    x = 9,060,447,388.05/106,776.89
  6. Step 6: Final answer
    x = 84,854.01

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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.