Home / 118,243.10-163,172.40-64,528.76

Finding the Fourth Proportional to 118,243.10, 163,172.40 and 64,528.76

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Solution

The fourth proportional to 118,243.10, 163,172.40 and 64,528.76 is: 89,048.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,243.10 : 163,172.40 = 64,528.76 : x
  2. Step 2: Convert to fraction form
    118,243.10/163,172.40 = 64,528.76/x
  3. Step 3: Cross multiply
    118,243.10x = 163,172.40 × 64,528.76
  4. Step 4: Simplify right side
    118,243.10x = 10,529,312,638.22
  5. Step 5: Solve for x
    x = 10,529,312,638.22/118,243.10
  6. Step 6: Final answer
    x = 89,048.01

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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.