Home / 121,623.80-182,435.70-102,378.20

Finding the Fourth Proportional to 121,623.80, 182,435.70 and 102,378.20

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Solution

The fourth proportional to 121,623.80, 182,435.70 and 102,378.20 is: 153,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,623.80 : 182,435.70 = 102,378.20 : x
  2. Step 2: Convert to fraction form
    121,623.80/182,435.70 = 102,378.20/x
  3. Step 3: Cross multiply
    121,623.80x = 182,435.70 × 102,378.20
  4. Step 4: Simplify right side
    121,623.80x = 18,677,438,581.74
  5. Step 5: Solve for x
    x = 18,677,438,581.74/121,623.80
  6. Step 6: Final answer
    x = 153,567.30

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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.