Home / 157,762.26-217,710.27-86,142.06

Finding the Fourth Proportional to 157,762.26, 217,710.27 and 86,142.06

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Solution

The fourth proportional to 157,762.26, 217,710.27 and 86,142.06 is: 118,875.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,762.26 : 217,710.27 = 86,142.06 : x
  2. Step 2: Convert to fraction form
    157,762.26/217,710.27 = 86,142.06/x
  3. Step 3: Cross multiply
    157,762.26x = 217,710.27 × 86,142.06
  4. Step 4: Simplify right side
    157,762.26x = 18,754,011,140.96
  5. Step 5: Solve for x
    x = 18,754,011,140.96/157,762.26
  6. Step 6: Final answer
    x = 118,875.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.