Home / 154,244.60-212,856.02-86,260.80

Finding the Fourth Proportional to 154,244.60, 212,856.02 and 86,260.80

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Solution

The fourth proportional to 154,244.60, 212,856.02 and 86,260.80 is: 119,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,244.60 : 212,856.02 = 86,260.80 : x
  2. Step 2: Convert to fraction form
    154,244.60/212,856.02 = 86,260.80/x
  3. Step 3: Cross multiply
    154,244.60x = 212,856.02 × 86,260.80
  4. Step 4: Simplify right side
    154,244.60x = 18,361,130,570.02
  5. Step 5: Solve for x
    x = 18,361,130,570.02/154,244.60
  6. Step 6: Final answer
    x = 119,039.05

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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.