Home / 115,153.17-172,598.72-70,075.11

Finding the Fourth Proportional to 115,153.17, 172,598.72 and 70,075.11

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Solution

The fourth proportional to 115,153.17, 172,598.72 and 70,075.11 is: 105,032.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,153.17 : 172,598.72 = 70,075.11 : x
  2. Step 2: Convert to fraction form
    115,153.17/172,598.72 = 70,075.11/x
  3. Step 3: Cross multiply
    115,153.17x = 172,598.72 × 70,075.11
  4. Step 4: Simplify right side
    115,153.17x = 12,094,874,289.86
  5. Step 5: Solve for x
    x = 12,094,874,289.86/115,153.17
  6. Step 6: Final answer
    x = 105,032.93

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1.5x scale

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.