Home / 118,555.17-163,603.85-64,840.02

Finding the Fourth Proportional to 118,555.17, 163,603.85 and 64,840.02

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Solution

The fourth proportional to 118,555.17, 163,603.85 and 64,840.02 is: 89,477.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,555.17 : 163,603.85 = 64,840.02 : x
  2. Step 2: Convert to fraction form
    118,555.17/163,603.85 = 64,840.02/x
  3. Step 3: Cross multiply
    118,555.17x = 163,603.85 × 64,840.02
  4. Step 4: Simplify right side
    118,555.17x = 10,608,076,581.88
  5. Step 5: Solve for x
    x = 10,608,076,581.88/118,555.17
  6. Step 6: Final answer
    x = 89,477.98

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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.