Home / 118,618.16-163,688.18-70,897.82

Finding the Fourth Proportional to 118,618.16, 163,688.18 and 70,897.82

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Solution

The fourth proportional to 118,618.16, 163,688.18 and 70,897.82 is: 97,836.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,618.16 : 163,688.18 = 70,897.82 : x
  2. Step 2: Convert to fraction form
    118,618.16/163,688.18 = 70,897.82/x
  3. Step 3: Cross multiply
    118,618.16x = 163,688.18 × 70,897.82
  4. Step 4: Simplify right side
    118,618.16x = 11,605,133,948.84
  5. Step 5: Solve for x
    x = 11,605,133,948.84/118,618.16
  6. Step 6: Final answer
    x = 97,836.07

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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.