Home / 100,023.86-137,967.90-64,157.06

Finding the Fourth Proportional to 100,023.86, 137,967.90 and 64,157.06

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Solution

The fourth proportional to 100,023.86, 137,967.90 and 64,157.06 is: 88,495.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,023.86 : 137,967.90 = 64,157.06 : x
  2. Step 2: Convert to fraction form
    100,023.86/137,967.90 = 64,157.06/x
  3. Step 3: Cross multiply
    100,023.86x = 137,967.90 × 64,157.06
  4. Step 4: Simplify right side
    100,023.86x = 8,851,614,838.37
  5. Step 5: Solve for x
    x = 8,851,614,838.37/100,023.86
  6. Step 6: Final answer
    x = 88,495.03

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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.