Home / 118,437.84-163,439.37-64,724.67

Finding the Fourth Proportional to 118,437.84, 163,439.37 and 64,724.67

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Solution

The fourth proportional to 118,437.84, 163,439.37 and 64,724.67 is: 89,317.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,437.84 : 163,439.37 = 64,724.67 : x
  2. Step 2: Convert to fraction form
    118,437.84/163,439.37 = 64,724.67/x
  3. Step 3: Cross multiply
    118,437.84x = 163,439.37 × 64,724.67
  4. Step 4: Simplify right side
    118,437.84x = 10,578,559,288.26
  5. Step 5: Solve for x
    x = 10,578,559,288.26/118,437.84
  6. Step 6: Final answer
    x = 89,317.39

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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.