Home / 154,409.07-213,217.50-97,143.84

Finding the Fourth Proportional to 154,409.07, 213,217.50 and 97,143.84

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Solution

The fourth proportional to 154,409.07, 213,217.50 and 97,143.84 is: 134,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,409.07 : 213,217.50 = 97,143.84 : x
  2. Step 2: Convert to fraction form
    154,409.07/213,217.50 = 97,143.84/x
  3. Step 3: Cross multiply
    154,409.07x = 213,217.50 × 97,143.84
  4. Step 4: Simplify right side
    154,409.07x = 20,712,766,705.20
  5. Step 5: Solve for x
    x = 20,712,766,705.20/154,409.07
  6. Step 6: Final answer
    x = 134,142.16

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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.