Home / 118,430.54-163,434.57-64,715.56

Finding the Fourth Proportional to 118,430.54, 163,434.57 and 64,715.56

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Solution

The fourth proportional to 118,430.54, 163,434.57 and 64,715.56 is: 89,307.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,430.54 : 163,434.57 = 64,715.56 : x
  2. Step 2: Convert to fraction form
    118,430.54/163,434.57 = 64,715.56/x
  3. Step 3: Cross multiply
    118,430.54x = 163,434.57 × 64,715.56
  4. Step 4: Simplify right side
    118,430.54x = 10,576,759,720.91
  5. Step 5: Solve for x
    x = 10,576,759,720.91/118,430.54
  6. Step 6: Final answer
    x = 89,307.70

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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.