Home / 108,802.35-163,050.33-86,516.82

Finding the Fourth Proportional to 108,802.35, 163,050.33 and 86,516.82

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Solution

The fourth proportional to 108,802.35, 163,050.33 and 86,516.82 is: 129,653.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,802.35 : 163,050.33 = 86,516.82 : x
  2. Step 2: Convert to fraction form
    108,802.35/163,050.33 = 86,516.82/x
  3. Step 3: Cross multiply
    108,802.35x = 163,050.33 × 86,516.82
  4. Step 4: Simplify right side
    108,802.35x = 14,106,596,051.55
  5. Step 5: Solve for x
    x = 14,106,596,051.55/108,802.35
  6. Step 6: Final answer
    x = 129,653.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.