Home / 99,945.63-137,911.65-64,184.07

Finding the Fourth Proportional to 99,945.63, 137,911.65 and 64,184.07

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Solution

The fourth proportional to 99,945.63, 137,911.65 and 64,184.07 is: 88,565.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,945.63 : 137,911.65 = 64,184.07 : x
  2. Step 2: Convert to fraction form
    99,945.63/137,911.65 = 64,184.07/x
  3. Step 3: Cross multiply
    99,945.63x = 137,911.65 × 64,184.07
  4. Step 4: Simplify right side
    99,945.63x = 8,851,730,997.42
  5. Step 5: Solve for x
    x = 8,851,730,997.42/99,945.63
  6. Step 6: Final answer
    x = 88,565.46

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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.