Home / 157,211.60-235,601.40-100,878.80

Finding the Fourth Proportional to 157,211.60, 235,601.40 and 100,878.80

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Solution

The fourth proportional to 157,211.60, 235,601.40 and 100,878.80 is: 151,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,211.60 : 235,601.40 = 100,878.80 : x
  2. Step 2: Convert to fraction form
    157,211.60/235,601.40 = 100,878.80/x
  3. Step 3: Cross multiply
    157,211.60x = 235,601.40 × 100,878.80
  4. Step 4: Simplify right side
    157,211.60x = 23,767,186,510.32
  5. Step 5: Solve for x
    x = 23,767,186,510.32/157,211.60
  6. Step 6: Final answer
    x = 151,179.60

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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.