Home / 189,720.61-261,831.01-104,854.07

Finding the Fourth Proportional to 189,720.61, 261,831.01 and 104,854.07

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Solution

The fourth proportional to 189,720.61, 261,831.01 and 104,854.07 is: 144,707.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,720.61 : 261,831.01 = 104,854.07 : x
  2. Step 2: Convert to fraction form
    189,720.61/261,831.01 = 104,854.07/x
  3. Step 3: Cross multiply
    189,720.61x = 261,831.01 × 104,854.07
  4. Step 4: Simplify right side
    189,720.61x = 27,454,047,050.71
  5. Step 5: Solve for x
    x = 27,454,047,050.71/189,720.61
  6. Step 6: Final answer
    x = 144,707.77

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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.