Home / 211,065.04-316,095-122,131.12

Finding the Fourth Proportional to 211,065.04, 316,095 and 122,131.12

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Solution

The fourth proportional to 211,065.04, 316,095 and 122,131.12 is: 182,905.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,065.04 : 316,095 = 122,131.12 : x
  2. Step 2: Convert to fraction form
    211,065.04/316,095 = 122,131.12/x
  3. Step 3: Cross multiply
    211,065.04x = 316,095 × 122,131.12
  4. Step 4: Simplify right side
    211,065.04x = 38,605,036,376.40
  5. Step 5: Solve for x
    x = 38,605,036,376.40/211,065.04
  6. Step 6: Final answer
    x = 182,905.88

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1.5x scale

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.