Home / 118,309.45-163,265.80-64,594.30

Finding the Fourth Proportional to 118,309.45, 163,265.80 and 64,594.30

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Solution

The fourth proportional to 118,309.45, 163,265.80 and 64,594.30 is: 89,139.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,309.45 : 163,265.80 = 64,594.30 : x
  2. Step 2: Convert to fraction form
    118,309.45/163,265.80 = 64,594.30/x
  3. Step 3: Cross multiply
    118,309.45x = 163,265.80 × 64,594.30
  4. Step 4: Simplify right side
    118,309.45x = 10,546,038,925.64
  5. Step 5: Solve for x
    x = 10,546,038,925.64/118,309.45
  6. Step 6: Final answer
    x = 89,139.45

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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.