Home / 112,178.90-154,809.80-61,192.50

Finding the Fourth Proportional to 112,178.90, 154,809.80 and 61,192.50

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Solution

The fourth proportional to 112,178.90, 154,809.80 and 61,192.50 is: 84,447.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,178.90 : 154,809.80 = 61,192.50 : x
  2. Step 2: Convert to fraction form
    112,178.90/154,809.80 = 61,192.50/x
  3. Step 3: Cross multiply
    112,178.90x = 154,809.80 × 61,192.50
  4. Step 4: Simplify right side
    112,178.90x = 9,473,198,686.50
  5. Step 5: Solve for x
    x = 9,473,198,686.50/112,178.90
  6. Step 6: Final answer
    x = 84,447.24

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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.