Home / 108,802.32-163,050.24-86,516.76

Finding the Fourth Proportional to 108,802.32, 163,050.24 and 86,516.76

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Solution

The fourth proportional to 108,802.32, 163,050.24 and 86,516.76 is: 129,653.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,802.32 : 163,050.24 = 86,516.76 : x
  2. Step 2: Convert to fraction form
    108,802.32/163,050.24 = 86,516.76/x
  3. Step 3: Cross multiply
    108,802.32x = 163,050.24 × 86,516.76
  4. Step 4: Simplify right side
    108,802.32x = 14,106,578,482.02
  5. Step 5: Solve for x
    x = 14,106,578,482.02/108,802.32
  6. Step 6: Final answer
    x = 129,653.29

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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.