Home / 180,831.51-249,546.28-100,259.05

Finding the Fourth Proportional to 180,831.51, 249,546.28 and 100,259.05

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Solution

The fourth proportional to 180,831.51, 249,546.28 and 100,259.05 is: 138,356.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,831.51 : 249,546.28 = 100,259.05 : x
  2. Step 2: Convert to fraction form
    180,831.51/249,546.28 = 100,259.05/x
  3. Step 3: Cross multiply
    180,831.51x = 249,546.28 × 100,259.05
  4. Step 4: Simplify right side
    180,831.51x = 25,019,272,963.83
  5. Step 5: Solve for x
    x = 25,019,272,963.83/180,831.51
  6. Step 6: Final answer
    x = 138,356.82

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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.