Home / 109,812.40-164,718.60-65,416.30

Finding the Fourth Proportional to 109,812.40, 164,718.60 and 65,416.30

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Solution

The fourth proportional to 109,812.40, 164,718.60 and 65,416.30 is: 98,124.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,812.40 : 164,718.60 = 65,416.30 : x
  2. Step 2: Convert to fraction form
    109,812.40/164,718.60 = 65,416.30/x
  3. Step 3: Cross multiply
    109,812.40x = 164,718.60 × 65,416.30
  4. Step 4: Simplify right side
    109,812.40x = 10,775,281,353.18
  5. Step 5: Solve for x
    x = 10,775,281,353.18/109,812.40
  6. Step 6: Final answer
    x = 98,124.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.