Home / 115,154.02-172,599.99-70,075.96

Finding the Fourth Proportional to 115,154.02, 172,599.99 and 70,075.96

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Solution

The fourth proportional to 115,154.02, 172,599.99 and 70,075.96 is: 105,034.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,154.02 : 172,599.99 = 70,075.96 : x
  2. Step 2: Convert to fraction form
    115,154.02/172,599.99 = 70,075.96/x
  3. Step 3: Cross multiply
    115,154.02x = 172,599.99 × 70,075.96
  4. Step 4: Simplify right side
    115,154.02x = 12,095,109,132.24
  5. Step 5: Solve for x
    x = 12,095,109,132.24/115,154.02
  6. Step 6: Final answer
    x = 105,034.19

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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.