Home / 187,399.36-280,966.74-69,055.12

Finding the Fourth Proportional to 187,399.36, 280,966.74 and 69,055.12

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Solution

The fourth proportional to 187,399.36, 280,966.74 and 69,055.12 is: 103,533.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,399.36 : 280,966.74 = 69,055.12 : x
  2. Step 2: Convert to fraction form
    187,399.36/280,966.74 = 69,055.12/x
  3. Step 3: Cross multiply
    187,399.36x = 280,966.74 × 69,055.12
  4. Step 4: Simplify right side
    187,399.36x = 19,402,191,946.71
  5. Step 5: Solve for x
    x = 19,402,191,946.71/187,399.36
  6. Step 6: Final answer
    x = 103,533.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.