Home / 100,023.57-137,967.48-64,156.77

Finding the Fourth Proportional to 100,023.57, 137,967.48 and 64,156.77

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Solution

The fourth proportional to 100,023.57, 137,967.48 and 64,156.77 is: 88,494.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,023.57 : 137,967.48 = 64,156.77 : x
  2. Step 2: Convert to fraction form
    100,023.57/137,967.48 = 64,156.77/x
  3. Step 3: Cross multiply
    100,023.57x = 137,967.48 × 64,156.77
  4. Step 4: Simplify right side
    100,023.57x = 8,851,547,881.84
  5. Step 5: Solve for x
    x = 8,851,547,881.84/100,023.57
  6. Step 6: Final answer
    x = 88,494.62

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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.