Home / 117,117.48-161,622.65-63,402.50

Finding the Fourth Proportional to 117,117.48, 161,622.65 and 63,402.50

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Solution

The fourth proportional to 117,117.48, 161,622.65 and 63,402.50 is: 87,495.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,117.48 : 161,622.65 = 63,402.50 : x
  2. Step 2: Convert to fraction form
    117,117.48/161,622.65 = 63,402.50/x
  3. Step 3: Cross multiply
    117,117.48x = 161,622.65 × 63,402.50
  4. Step 4: Simplify right side
    117,117.48x = 10,247,280,066.63
  5. Step 5: Solve for x
    x = 10,247,280,066.63/117,117.48
  6. Step 6: Final answer
    x = 87,495.74

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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.