Home / 93,621.20-140,431.80-89,992.40

Finding the Fourth Proportional to 93,621.20, 140,431.80 and 89,992.40

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Solution

The fourth proportional to 93,621.20, 140,431.80 and 89,992.40 is: 134,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,621.20 : 140,431.80 = 89,992.40 : x
  2. Step 2: Convert to fraction form
    93,621.20/140,431.80 = 89,992.40/x
  3. Step 3: Cross multiply
    93,621.20x = 140,431.80 × 89,992.40
  4. Step 4: Simplify right side
    93,621.20x = 12,637,794,718.32
  5. Step 5: Solve for x
    x = 12,637,794,718.32/93,621.20
  6. Step 6: Final answer
    x = 134,988.60

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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.