Home / 189,430.74-261,413.88-104,547.20

Finding the Fourth Proportional to 189,430.74, 261,413.88 and 104,547.20

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Solution

The fourth proportional to 189,430.74, 261,413.88 and 104,547.20 is: 144,274.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,430.74 : 261,413.88 = 104,547.20 : x
  2. Step 2: Convert to fraction form
    189,430.74/261,413.88 = 104,547.20/x
  3. Step 3: Cross multiply
    189,430.74x = 261,413.88 × 104,547.20
  4. Step 4: Simplify right side
    189,430.74x = 27,330,087,888.07
  5. Step 5: Solve for x
    x = 27,330,087,888.07/189,430.74
  6. Step 6: Final answer
    x = 144,274.83

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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.