Home / 112,918.64-155,800.68-70,461.68

Finding the Fourth Proportional to 112,918.64, 155,800.68 and 70,461.68

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Solution

The fourth proportional to 112,918.64, 155,800.68 and 70,461.68 is: 97,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,918.64 : 155,800.68 = 70,461.68 : x
  2. Step 2: Convert to fraction form
    112,918.64/155,800.68 = 70,461.68/x
  3. Step 3: Cross multiply
    112,918.64x = 155,800.68 × 70,461.68
  4. Step 4: Simplify right side
    112,918.64x = 10,977,977,657.94
  5. Step 5: Solve for x
    x = 10,977,977,657.94/112,918.64
  6. Step 6: Final answer
    x = 97,220.24

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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.