Home / 154,227.08-212,856.18-97,643.72

Finding the Fourth Proportional to 154,227.08, 212,856.18 and 97,643.72

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Solution

The fourth proportional to 154,227.08, 212,856.18 and 97,643.72 is: 134,762.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,227.08 : 212,856.18 = 97,643.72 : x
  2. Step 2: Convert to fraction form
    154,227.08/212,856.18 = 97,643.72/x
  3. Step 3: Cross multiply
    154,227.08x = 212,856.18 × 97,643.72
  4. Step 4: Simplify right side
    154,227.08x = 20,784,069,240.19
  5. Step 5: Solve for x
    x = 20,784,069,240.19/154,227.08
  6. Step 6: Final answer
    x = 134,762.77

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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.