Home / 154,288.95-212,908.75-86,294.16

Finding the Fourth Proportional to 154,288.95, 212,908.75 and 86,294.16

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Solution

The fourth proportional to 154,288.95, 212,908.75 and 86,294.16 is: 119,080.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,288.95 : 212,908.75 = 86,294.16 : x
  2. Step 2: Convert to fraction form
    154,288.95/212,908.75 = 86,294.16/x
  3. Step 3: Cross multiply
    154,288.95x = 212,908.75 × 86,294.16
  4. Step 4: Simplify right side
    154,288.95x = 18,372,782,007.57
  5. Step 5: Solve for x
    x = 18,372,782,007.57/154,288.95
  6. Step 6: Final answer
    x = 119,080.35

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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.