Home / 158,701.46-219,021.86-87,095.30

Finding the Fourth Proportional to 158,701.46, 219,021.86 and 87,095.30

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Solution

The fourth proportional to 158,701.46, 219,021.86 and 87,095.30 is: 120,199.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,701.46 : 219,021.86 = 87,095.30 : x
  2. Step 2: Convert to fraction form
    158,701.46/219,021.86 = 87,095.30/x
  3. Step 3: Cross multiply
    158,701.46x = 219,021.86 × 87,095.30
  4. Step 4: Simplify right side
    158,701.46x = 19,075,773,725.89
  5. Step 5: Solve for x
    x = 19,075,773,725.89/158,701.46
  6. Step 6: Final answer
    x = 120,199.11

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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.