Home / 157,637.80-217,536.06-86,018.68

Finding the Fourth Proportional to 157,637.80, 217,536.06 and 86,018.68

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Solution

The fourth proportional to 157,637.80, 217,536.06 and 86,018.68 is: 118,703.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,637.80 : 217,536.06 = 86,018.68 : x
  2. Step 2: Convert to fraction form
    157,637.80/217,536.06 = 86,018.68/x
  3. Step 3: Cross multiply
    157,637.80x = 217,536.06 × 86,018.68
  4. Step 4: Simplify right side
    157,637.80x = 18,712,164,733.60
  5. Step 5: Solve for x
    x = 18,712,164,733.60/157,637.80
  6. Step 6: Final answer
    x = 118,703.54

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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.