Home / 230,129.51-317,577.71-128,156.18

Finding the Fourth Proportional to 230,129.51, 317,577.71 and 128,156.18

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Solution

The fourth proportional to 230,129.51, 317,577.71 and 128,156.18 is: 176,854.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,129.51 : 317,577.71 = 128,156.18 : x
  2. Step 2: Convert to fraction form
    230,129.51/317,577.71 = 128,156.18/x
  3. Step 3: Cross multiply
    230,129.51x = 317,577.71 × 128,156.18
  4. Step 4: Simplify right side
    230,129.51x = 40,699,544,899.25
  5. Step 5: Solve for x
    x = 40,699,544,899.25/230,129.51
  6. Step 6: Final answer
    x = 176,854.96

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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.