Home / 172,120.65-237,515.00-99,518.05

Finding the Fourth Proportional to 172,120.65, 237,515.00 and 99,518.05

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Solution

The fourth proportional to 172,120.65, 237,515.00 and 99,518.05 is: 137,328.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,120.65 : 237,515.00 = 99,518.05 : x
  2. Step 2: Convert to fraction form
    172,120.65/237,515.00 = 99,518.05/x
  3. Step 3: Cross multiply
    172,120.65x = 237,515.00 × 99,518.05
  4. Step 4: Simplify right side
    172,120.65x = 23,637,029,445.05
  5. Step 5: Solve for x
    x = 23,637,029,445.05/172,120.65
  6. Step 6: Final answer
    x = 137,328.26

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1.5x scale

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.