Home / 118,319.58-163,453.75-102,376.35

Finding the Fourth Proportional to 118,319.58, 163,453.75 and 102,376.35

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Solution

The fourth proportional to 118,319.58, 163,453.75 and 102,376.35 is: 141,428.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,319.58 : 163,453.75 = 102,376.35 : x
  2. Step 2: Convert to fraction form
    118,319.58/163,453.75 = 102,376.35/x
  3. Step 3: Cross multiply
    118,319.58x = 163,453.75 × 102,376.35
  4. Step 4: Simplify right side
    118,319.58x = 16,733,798,062.87
  5. Step 5: Solve for x
    x = 16,733,798,062.87/118,319.58
  6. Step 6: Final answer
    x = 141,428.82

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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.