Home / 147,621.60-221,432.40-49,125.60

Finding the Fourth Proportional to 147,621.60, 221,432.40 and 49,125.60

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Solution

The fourth proportional to 147,621.60, 221,432.40 and 49,125.60 is: 73,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,621.60 : 221,432.40 = 49,125.60 : x
  2. Step 2: Convert to fraction form
    147,621.60/221,432.40 = 49,125.60/x
  3. Step 3: Cross multiply
    147,621.60x = 221,432.40 × 49,125.60
  4. Step 4: Simplify right side
    147,621.60x = 10,877,999,509.44
  5. Step 5: Solve for x
    x = 10,877,999,509.44/147,621.60
  6. Step 6: Final answer
    x = 73,688.40

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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.