Home / 211,089.02-316,555.68-91,151.50

Finding the Fourth Proportional to 211,089.02, 316,555.68 and 91,151.50

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Solution

The fourth proportional to 211,089.02, 316,555.68 and 91,151.50 is: 136,693.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,089.02 : 316,555.68 = 91,151.50 : x
  2. Step 2: Convert to fraction form
    211,089.02/316,555.68 = 91,151.50/x
  3. Step 3: Cross multiply
    211,089.02x = 316,555.68 × 91,151.50
  4. Step 4: Simplify right side
    211,089.02x = 28,854,525,119.40
  5. Step 5: Solve for x
    x = 28,854,525,119.40/211,089.02
  6. Step 6: Final answer
    x = 136,693.63

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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.