Home / 145,420.40-200,681.52-88,831.74

Finding the Fourth Proportional to 145,420.40, 200,681.52 and 88,831.74

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Solution

The fourth proportional to 145,420.40, 200,681.52 and 88,831.74 is: 122,588.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,420.40 : 200,681.52 = 88,831.74 : x
  2. Step 2: Convert to fraction form
    145,420.40/200,681.52 = 88,831.74/x
  3. Step 3: Cross multiply
    145,420.40x = 200,681.52 × 88,831.74
  4. Step 4: Simplify right side
    145,420.40x = 17,826,888,607.44
  5. Step 5: Solve for x
    x = 17,826,888,607.44/145,420.40
  6. Step 6: Final answer
    x = 122,588.64

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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.