Home / 105,540,300.86-158,312,750.36-74,288,247.64

Finding the Fourth Proportional to 105,540,300.86, 158,312,750.36 and 74,288,247.64

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Solution

The fourth proportional to 105,540,300.86, 158,312,750.36 and 74,288,247.64 is: 111,433,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,540,300.86 : 158,312,750.36 = 74,288,247.64 : x
  2. Step 2: Convert to fraction form
    105,540,300.86/158,312,750.36 = 74,288,247.64/x
  3. Step 3: Cross multiply
    105,540,300.86x = 158,312,750.36 × 74,288,247.64
  4. Step 4: Simplify right side
    105,540,300.86x = 11,760,776,803,313,180
  5. Step 5: Solve for x
    x = 11,760,776,803,313,180/105,540,300.86
  6. Step 6: Final answer
    x = 111,433,989.74

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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.