Home / 118,225.49-163,155.11-64,513.45

Finding the Fourth Proportional to 118,225.49, 163,155.11 and 64,513.45

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Solution

The fourth proportional to 118,225.49, 163,155.11 and 64,513.45 is: 89,030.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,225.49 : 163,155.11 = 64,513.45 : x
  2. Step 2: Convert to fraction form
    118,225.49/163,155.11 = 64,513.45/x
  3. Step 3: Cross multiply
    118,225.49x = 163,155.11 × 64,513.45
  4. Step 4: Simplify right side
    118,225.49x = 10,525,699,664.35
  5. Step 5: Solve for x
    x = 10,525,699,664.35/118,225.49
  6. Step 6: Final answer
    x = 89,030.71

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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.