Home / 163,553.10-245,329.65-70,068.30

Finding the Fourth Proportional to 163,553.10, 245,329.65 and 70,068.30

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Solution

The fourth proportional to 163,553.10, 245,329.65 and 70,068.30 is: 105,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,553.10 : 245,329.65 = 70,068.30 : x
  2. Step 2: Convert to fraction form
    163,553.10/245,329.65 = 70,068.30/x
  3. Step 3: Cross multiply
    163,553.10x = 245,329.65 × 70,068.30
  4. Step 4: Simplify right side
    163,553.10x = 17,189,831,515.10
  5. Step 5: Solve for x
    x = 17,189,831,515.10/163,553.10
  6. Step 6: Final answer
    x = 105,102.45

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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.