Home / 118,985.04-164,310.48-76,618.08

Finding the Fourth Proportional to 118,985.04, 164,310.48 and 76,618.08

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Solution

The fourth proportional to 118,985.04, 164,310.48 and 76,618.08 is: 105,804.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,985.04 : 164,310.48 = 76,618.08 : x
  2. Step 2: Convert to fraction form
    118,985.04/164,310.48 = 76,618.08/x
  3. Step 3: Cross multiply
    118,985.04x = 164,310.48 × 76,618.08
  4. Step 4: Simplify right side
    118,985.04x = 12,589,153,501.48
  5. Step 5: Solve for x
    x = 12,589,153,501.48/118,985.04
  6. Step 6: Final answer
    x = 105,804.51

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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.