Home / 131,070.72-180,875.41-72,925.21

Finding the Fourth Proportional to 131,070.72, 180,875.41 and 72,925.21

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Solution

The fourth proportional to 131,070.72, 180,875.41 and 72,925.21 is: 100,635.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,070.72 : 180,875.41 = 72,925.21 : x
  2. Step 2: Convert to fraction form
    131,070.72/180,875.41 = 72,925.21/x
  3. Step 3: Cross multiply
    131,070.72x = 180,875.41 × 72,925.21
  4. Step 4: Simplify right side
    131,070.72x = 13,190,377,258.09
  5. Step 5: Solve for x
    x = 13,190,377,258.09/131,070.72
  6. Step 6: Final answer
    x = 100,635.57

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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.