Home / 131,646.16-181,668.36-77,932

Finding the Fourth Proportional to 131,646.16, 181,668.36 and 77,932

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Solution

The fourth proportional to 131,646.16, 181,668.36 and 77,932 is: 107,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,646.16 : 181,668.36 = 77,932 : x
  2. Step 2: Convert to fraction form
    131,646.16/181,668.36 = 77,932/x
  3. Step 3: Cross multiply
    131,646.16x = 181,668.36 × 77,932
  4. Step 4: Simplify right side
    131,646.16x = 14,157,778,631.52
  5. Step 5: Solve for x
    x = 14,157,778,631.52/131,646.16
  6. Step 6: Final answer
    x = 107,544.18

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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.