Home / 118,430.71-163,427.49-64,716.17

Finding the Fourth Proportional to 118,430.71, 163,427.49 and 64,716.17

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Solution

The fourth proportional to 118,430.71, 163,427.49 and 64,716.17 is: 89,304.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,430.71 : 163,427.49 = 64,716.17 : x
  2. Step 2: Convert to fraction form
    118,430.71/163,427.49 = 64,716.17/x
  3. Step 3: Cross multiply
    118,430.71x = 163,427.49 × 64,716.17
  4. Step 4: Simplify right side
    118,430.71x = 10,576,400,408.38
  5. Step 5: Solve for x
    x = 10,576,400,408.38/118,430.71
  6. Step 6: Final answer
    x = 89,304.54

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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.