Home / 121,427.40-182,141.10-47,555.40

Finding the Fourth Proportional to 121,427.40, 182,141.10 and 47,555.40

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Solution

The fourth proportional to 121,427.40, 182,141.10 and 47,555.40 is: 71,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,427.40 : 182,141.10 = 47,555.40 : x
  2. Step 2: Convert to fraction form
    121,427.40/182,141.10 = 47,555.40/x
  3. Step 3: Cross multiply
    121,427.40x = 182,141.10 × 47,555.40
  4. Step 4: Simplify right side
    121,427.40x = 8,661,792,866.94
  5. Step 5: Solve for x
    x = 8,661,792,866.94/121,427.40
  6. Step 6: Final answer
    x = 71,333.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.