Home / 134,317.81-185,338.02-77,718.25

Finding the Fourth Proportional to 134,317.81, 185,338.02 and 77,718.25

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Solution

The fourth proportional to 134,317.81, 185,338.02 and 77,718.25 is: 107,239.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,317.81 : 185,338.02 = 77,718.25 : x
  2. Step 2: Convert to fraction form
    134,317.81/185,338.02 = 77,718.25/x
  3. Step 3: Cross multiply
    134,317.81x = 185,338.02 × 77,718.25
  4. Step 4: Simplify right side
    134,317.81x = 14,404,146,572.87
  5. Step 5: Solve for x
    x = 14,404,146,572.87/134,317.81
  6. Step 6: Final answer
    x = 107,239.29

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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.