Home / 203,501.16-280,831.60-112,871.00

Finding the Fourth Proportional to 203,501.16, 280,831.60 and 112,871.00

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Solution

The fourth proportional to 203,501.16, 280,831.60 and 112,871.00 is: 155,761.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,501.16 : 280,831.60 = 112,871.00 : x
  2. Step 2: Convert to fraction form
    203,501.16/280,831.60 = 112,871.00/x
  3. Step 3: Cross multiply
    203,501.16x = 280,831.60 × 112,871.00
  4. Step 4: Simplify right side
    203,501.16x = 31,697,742,678.75
  5. Step 5: Solve for x
    x = 31,697,742,678.75/203,501.16
  6. Step 6: Final answer
    x = 155,761.98

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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.