Home / 153,190.37-211,316.45-91,920.71

Finding the Fourth Proportional to 153,190.37, 211,316.45 and 91,920.71

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Solution

The fourth proportional to 153,190.37, 211,316.45 and 91,920.71 is: 126,798.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,190.37 : 211,316.45 = 91,920.71 : x
  2. Step 2: Convert to fraction form
    153,190.37/211,316.45 = 91,920.71/x
  3. Step 3: Cross multiply
    153,190.37x = 211,316.45 × 91,920.71
  4. Step 4: Simplify right side
    153,190.37x = 19,424,358,187.37
  5. Step 5: Solve for x
    x = 19,424,358,187.37/153,190.37
  6. Step 6: Final answer
    x = 126,798.82

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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.