Home / 112,495.23-155,359.62-97,315.02

Finding the Fourth Proportional to 112,495.23, 155,359.62 and 97,315.02

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Solution

The fourth proportional to 112,495.23, 155,359.62 and 97,315.02 is: 134,395.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,495.23 : 155,359.62 = 97,315.02 : x
  2. Step 2: Convert to fraction form
    112,495.23/155,359.62 = 97,315.02/x
  3. Step 3: Cross multiply
    112,495.23x = 155,359.62 × 97,315.02
  4. Step 4: Simplify right side
    112,495.23x = 15,118,824,527.49
  5. Step 5: Solve for x
    x = 15,118,824,527.49/112,495.23
  6. Step 6: Final answer
    x = 134,395.25

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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.