Home / 145,621.64-218,432.54-40,440.62

Finding the Fourth Proportional to 145,621.64, 218,432.54 and 40,440.62

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Solution

The fourth proportional to 145,621.64, 218,432.54 and 40,440.62 is: 60,660.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,621.64 : 218,432.54 = 40,440.62 : x
  2. Step 2: Convert to fraction form
    145,621.64/218,432.54 = 40,440.62/x
  3. Step 3: Cross multiply
    145,621.64x = 218,432.54 × 40,440.62
  4. Step 4: Simplify right side
    145,621.64x = 8,833,547,345.77
  5. Step 5: Solve for x
    x = 8,833,547,345.77/145,621.64
  6. Step 6: Final answer
    x = 60,660.95

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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.