Home / 191,270.15-286,782.20-91,428.13

Finding the Fourth Proportional to 191,270.15, 286,782.20 and 91,428.13

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Solution

The fourth proportional to 191,270.15, 286,782.20 and 91,428.13 is: 137,083.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,270.15 : 286,782.20 = 91,428.13 : x
  2. Step 2: Convert to fraction form
    191,270.15/286,782.20 = 91,428.13/x
  3. Step 3: Cross multiply
    191,270.15x = 286,782.20 × 91,428.13
  4. Step 4: Simplify right side
    191,270.15x = 26,219,960,263.29
  5. Step 5: Solve for x
    x = 26,219,960,263.29/191,270.15
  6. Step 6: Final answer
    x = 137,083.39

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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.