Home / 112,343.15-154,985.40-64,586.36

Finding the Fourth Proportional to 112,343.15, 154,985.40 and 64,586.36

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Solution

The fourth proportional to 112,343.15, 154,985.40 and 64,586.36 is: 89,101.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,343.15 : 154,985.40 = 64,586.36 : x
  2. Step 2: Convert to fraction form
    112,343.15/154,985.40 = 64,586.36/x
  3. Step 3: Cross multiply
    112,343.15x = 154,985.40 × 64,586.36
  4. Step 4: Simplify right side
    112,343.15x = 10,009,943,226.61
  5. Step 5: Solve for x
    x = 10,009,943,226.61/112,343.15
  6. Step 6: Final answer
    x = 89,101.50

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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.