Home / 107,011.66-147,677.64-61,688.82

Finding the Fourth Proportional to 107,011.66, 147,677.64 and 61,688.82

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Solution

The fourth proportional to 107,011.66, 147,677.64 and 61,688.82 is: 85,131.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,011.66 : 147,677.64 = 61,688.82 : x
  2. Step 2: Convert to fraction form
    107,011.66/147,677.64 = 61,688.82/x
  3. Step 3: Cross multiply
    107,011.66x = 147,677.64 × 61,688.82
  4. Step 4: Simplify right side
    107,011.66x = 9,110,059,351.98
  5. Step 5: Solve for x
    x = 9,110,059,351.98/107,011.66
  6. Step 6: Final answer
    x = 85,131.46

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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.