Home / 112,988.34-169,416.06-42,872.58

Finding the Fourth Proportional to 112,988.34, 169,416.06 and 42,872.58

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Solution

The fourth proportional to 112,988.34, 169,416.06 and 42,872.58 is: 64,283.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,988.34 : 169,416.06 = 42,872.58 : x
  2. Step 2: Convert to fraction form
    112,988.34/169,416.06 = 42,872.58/x
  3. Step 3: Cross multiply
    112,988.34x = 169,416.06 × 42,872.58
  4. Step 4: Simplify right side
    112,988.34x = 7,263,303,585.63
  5. Step 5: Solve for x
    x = 7,263,303,585.63/112,988.34
  6. Step 6: Final answer
    x = 64,283.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.