Home / 158,075.30-218,147.18-86,459.96

Finding the Fourth Proportional to 158,075.30, 218,147.18 and 86,459.96

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Solution

The fourth proportional to 158,075.30, 218,147.18 and 86,459.96 is: 119,316.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,075.30 : 218,147.18 = 86,459.96 : x
  2. Step 2: Convert to fraction form
    158,075.30/218,147.18 = 86,459.96/x
  3. Step 3: Cross multiply
    158,075.30x = 218,147.18 × 86,459.96
  4. Step 4: Simplify right side
    158,075.30x = 18,860,996,569.98
  5. Step 5: Solve for x
    x = 18,860,996,569.98/158,075.30
  6. Step 6: Final answer
    x = 119,316.53

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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.