Home / 117,739.04-176,482.74-85,641.16

Finding the Fourth Proportional to 117,739.04, 176,482.74 and 85,641.16

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Solution

The fourth proportional to 117,739.04, 176,482.74 and 85,641.16 is: 128,370.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,739.04 : 176,482.74 = 85,641.16 : x
  2. Step 2: Convert to fraction form
    117,739.04/176,482.74 = 85,641.16/x
  3. Step 3: Cross multiply
    117,739.04x = 176,482.74 × 85,641.16
  4. Step 4: Simplify right side
    117,739.04x = 15,114,186,573.58
  5. Step 5: Solve for x
    x = 15,114,186,573.58/117,739.04
  6. Step 6: Final answer
    x = 128,370.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.