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Finding the Fourth Proportional to 110,030.33, 151,831.35 and 87,424.04

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Solution

The fourth proportional to 110,030.33, 151,831.35 and 87,424.04 is: 120,636.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,030.33 : 151,831.35 = 87,424.04 : x
  2. Step 2: Convert to fraction form
    110,030.33/151,831.35 = 87,424.04/x
  3. Step 3: Cross multiply
    110,030.33x = 151,831.35 × 87,424.04
  4. Step 4: Simplify right side
    110,030.33x = 13,273,710,395.23
  5. Step 5: Solve for x
    x = 13,273,710,395.23/110,030.33
  6. Step 6: Final answer
    x = 120,636.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.