Home / 98,775.29-136,273.21-64,802.68

Finding the Fourth Proportional to 98,775.29, 136,273.21 and 64,802.68

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Solution

The fourth proportional to 98,775.29, 136,273.21 and 64,802.68 is: 89,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,775.29 : 136,273.21 = 64,802.68 : x
  2. Step 2: Convert to fraction form
    98,775.29/136,273.21 = 64,802.68/x
  3. Step 3: Cross multiply
    98,775.29x = 136,273.21 × 64,802.68
  4. Step 4: Simplify right side
    98,775.29x = 8,830,868,717.51
  5. Step 5: Solve for x
    x = 8,830,868,717.51/98,775.29
  6. Step 6: Final answer
    x = 89,403.62

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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.