Home / 112,772.12-155,625.64-61,089.34

Finding the Fourth Proportional to 112,772.12, 155,625.64 and 61,089.34

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Solution

The fourth proportional to 112,772.12, 155,625.64 and 61,089.34 is: 84,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,772.12 : 155,625.64 = 61,089.34 : x
  2. Step 2: Convert to fraction form
    112,772.12/155,625.64 = 61,089.34/x
  3. Step 3: Cross multiply
    112,772.12x = 155,625.64 × 61,089.34
  4. Step 4: Simplify right side
    112,772.12x = 9,507,067,144.72
  5. Step 5: Solve for x
    x = 9,507,067,144.72/112,772.12
  6. Step 6: Final answer
    x = 84,303.35

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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.