Home / 191,090.22-286,750.53-66,518.70

Finding the Fourth Proportional to 191,090.22, 286,750.53 and 66,518.70

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Solution

The fourth proportional to 191,090.22, 286,750.53 and 66,518.70 is: 99,818.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,090.22 : 286,750.53 = 66,518.70 : x
  2. Step 2: Convert to fraction form
    191,090.22/286,750.53 = 66,518.70/x
  3. Step 3: Cross multiply
    191,090.22x = 286,750.53 × 66,518.70
  4. Step 4: Simplify right side
    191,090.22x = 19,074,272,479.91
  5. Step 5: Solve for x
    x = 19,074,272,479.91/191,090.22
  6. Step 6: Final answer
    x = 99,818.15

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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.