Home / 118,436.81-163,444.93-64,724.09

Finding the Fourth Proportional to 118,436.81, 163,444.93 and 64,724.09

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Solution

The fourth proportional to 118,436.81, 163,444.93 and 64,724.09 is: 89,320.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,436.81 : 163,444.93 = 64,724.09 : x
  2. Step 2: Convert to fraction form
    118,436.81/163,444.93 = 64,724.09/x
  3. Step 3: Cross multiply
    118,436.81x = 163,444.93 × 64,724.09
  4. Step 4: Simplify right side
    118,436.81x = 10,578,824,359.36
  5. Step 5: Solve for x
    x = 10,578,824,359.36/118,436.81
  6. Step 6: Final answer
    x = 89,320.41

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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.