Home / 157,637.07-217,539.72-86,018.67

Finding the Fourth Proportional to 157,637.07, 217,539.72 and 86,018.67

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Solution

The fourth proportional to 157,637.07, 217,539.72 and 86,018.67 is: 118,706.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,637.07 : 217,539.72 = 86,018.67 : x
  2. Step 2: Convert to fraction form
    157,637.07/217,539.72 = 86,018.67/x
  3. Step 3: Cross multiply
    157,637.07x = 217,539.72 × 86,018.67
  4. Step 4: Simplify right side
    157,637.07x = 18,712,477,386.57
  5. Step 5: Solve for x
    x = 18,712,477,386.57/157,637.07
  6. Step 6: Final answer
    x = 118,706.07

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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.