Home / 107,187.74-147,908.48-61,880.39

Finding the Fourth Proportional to 107,187.74, 147,908.48 and 61,880.39

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Solution

The fourth proportional to 107,187.74, 147,908.48 and 61,880.39 is: 85,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,187.74 : 147,908.48 = 61,880.39 : x
  2. Step 2: Convert to fraction form
    107,187.74/147,908.48 = 61,880.39/x
  3. Step 3: Cross multiply
    107,187.74x = 147,908.48 × 61,880.39
  4. Step 4: Simplify right side
    107,187.74x = 9,152,634,426.71
  5. Step 5: Solve for x
    x = 9,152,634,426.71/107,187.74
  6. Step 6: Final answer
    x = 85,388.82

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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.