Home / 113,816.52-157,048.02-63,515.40

Finding the Fourth Proportional to 113,816.52, 157,048.02 and 63,515.40

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Solution

The fourth proportional to 113,816.52, 157,048.02 and 63,515.40 is: 87,640.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,816.52 : 157,048.02 = 63,515.40 : x
  2. Step 2: Convert to fraction form
    113,816.52/157,048.02 = 63,515.40/x
  3. Step 3: Cross multiply
    113,816.52x = 157,048.02 × 63,515.40
  4. Step 4: Simplify right side
    113,816.52x = 9,974,967,809.51
  5. Step 5: Solve for x
    x = 9,974,967,809.51/113,816.52
  6. Step 6: Final answer
    x = 87,640.77

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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.