Home / 230,130.26-317,578.75-128,156.93

Finding the Fourth Proportional to 230,130.26, 317,578.75 and 128,156.93

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Solution

The fourth proportional to 230,130.26, 317,578.75 and 128,156.93 is: 176,856.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,130.26 : 317,578.75 = 128,156.93 : x
  2. Step 2: Convert to fraction form
    230,130.26/317,578.75 = 128,156.93/x
  3. Step 3: Cross multiply
    230,130.26x = 317,578.75 × 128,156.93
  4. Step 4: Simplify right side
    230,130.26x = 40,699,915,724.95
  5. Step 5: Solve for x
    x = 40,699,915,724.95/230,130.26
  6. Step 6: Final answer
    x = 176,856.00

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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.