Home / 154,271.13-212,905.06-86,294.46

Finding the Fourth Proportional to 154,271.13, 212,905.06 and 86,294.46

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Solution

The fourth proportional to 154,271.13, 212,905.06 and 86,294.46 is: 119,092.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,271.13 : 212,905.06 = 86,294.46 : x
  2. Step 2: Convert to fraction form
    154,271.13/212,905.06 = 86,294.46/x
  3. Step 3: Cross multiply
    154,271.13x = 212,905.06 × 86,294.46
  4. Step 4: Simplify right side
    154,271.13x = 18,372,527,766.63
  5. Step 5: Solve for x
    x = 18,372,527,766.63/154,271.13
  6. Step 6: Final answer
    x = 119,092.45

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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.