Home / 215,421.74-297,088.46-134,856.60

Finding the Fourth Proportional to 215,421.74, 297,088.46 and 134,856.60

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Solution

The fourth proportional to 215,421.74, 297,088.46 and 134,856.60 is: 185,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,421.74 : 297,088.46 = 134,856.60 : x
  2. Step 2: Convert to fraction form
    215,421.74/297,088.46 = 134,856.60/x
  3. Step 3: Cross multiply
    215,421.74x = 297,088.46 × 134,856.60
  4. Step 4: Simplify right side
    215,421.74x = 40,064,339,614.84
  5. Step 5: Solve for x
    x = 40,064,339,614.84/215,421.74
  6. Step 6: Final answer
    x = 185,980.95

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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.