Home / 130,673.33-180,392.54-87,637.07

Finding the Fourth Proportional to 130,673.33, 180,392.54 and 87,637.07

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Solution

The fourth proportional to 130,673.33, 180,392.54 and 87,637.07 is: 120,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,673.33 : 180,392.54 = 87,637.07 : x
  2. Step 2: Convert to fraction form
    130,673.33/180,392.54 = 87,637.07/x
  3. Step 3: Cross multiply
    130,673.33x = 180,392.54 × 87,637.07
  4. Step 4: Simplify right side
    130,673.33x = 15,809,074,325.53
  5. Step 5: Solve for x
    x = 15,809,074,325.53/130,673.33
  6. Step 6: Final answer
    x = 120,981.65

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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.