Home / 180,913.32-271,152-66,970.08

Finding the Fourth Proportional to 180,913.32, 271,152 and 66,970.08

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Solution

The fourth proportional to 180,913.32, 271,152 and 66,970.08 is: 100,374.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,913.32 : 271,152 = 66,970.08 : x
  2. Step 2: Convert to fraction form
    180,913.32/271,152 = 66,970.08/x
  3. Step 3: Cross multiply
    180,913.32x = 271,152 × 66,970.08
  4. Step 4: Simplify right side
    180,913.32x = 18,159,071,132.16
  5. Step 5: Solve for x
    x = 18,159,071,132.16/180,913.32
  6. Step 6: Final answer
    x = 100,374.43

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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.