Home / 145,831.10-218,719.65-40,628.30

Finding the Fourth Proportional to 145,831.10, 218,719.65 and 40,628.30

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Solution

The fourth proportional to 145,831.10, 218,719.65 and 40,628.30 is: 60,934.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,831.10 : 218,719.65 = 40,628.30 : x
  2. Step 2: Convert to fraction form
    145,831.10/218,719.65 = 40,628.30/x
  3. Step 3: Cross multiply
    145,831.10x = 218,719.65 × 40,628.30
  4. Step 4: Simplify right side
    145,831.10x = 8,886,207,556.10
  5. Step 5: Solve for x
    x = 8,886,207,556.10/145,831.10
  6. Step 6: Final answer
    x = 60,934.93

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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.