Home / 170,972.30-235,973.94-99,356.24

Finding the Fourth Proportional to 170,972.30, 235,973.94 and 99,356.24

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Solution

The fourth proportional to 170,972.30, 235,973.94 and 99,356.24 is: 137,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,972.30 : 235,973.94 = 99,356.24 : x
  2. Step 2: Convert to fraction form
    170,972.30/235,973.94 = 99,356.24/x
  3. Step 3: Cross multiply
    170,972.30x = 235,973.94 × 99,356.24
  4. Step 4: Simplify right side
    170,972.30x = 23,445,483,416.39
  5. Step 5: Solve for x
    x = 23,445,483,416.39/170,972.30
  6. Step 6: Final answer
    x = 137,130.30

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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.