Home / 112,075.40-168,113.10-106,389.20

Finding the Fourth Proportional to 112,075.40, 168,113.10 and 106,389.20

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Solution

The fourth proportional to 112,075.40, 168,113.10 and 106,389.20 is: 159,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,075.40 : 168,113.10 = 106,389.20 : x
  2. Step 2: Convert to fraction form
    112,075.40/168,113.10 = 106,389.20/x
  3. Step 3: Cross multiply
    112,075.40x = 168,113.10 × 106,389.20
  4. Step 4: Simplify right side
    112,075.40x = 17,885,418,218.52
  5. Step 5: Solve for x
    x = 17,885,418,218.52/112,075.40
  6. Step 6: Final answer
    x = 159,583.80

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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.