Home / 124,878.42-172,349.10-70,441.76

Finding the Fourth Proportional to 124,878.42, 172,349.10 and 70,441.76

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Solution

The fourth proportional to 124,878.42, 172,349.10 and 70,441.76 is: 97,219.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,878.42 : 172,349.10 = 70,441.76 : x
  2. Step 2: Convert to fraction form
    124,878.42/172,349.10 = 70,441.76/x
  3. Step 3: Cross multiply
    124,878.42x = 172,349.10 × 70,441.76
  4. Step 4: Simplify right side
    124,878.42x = 12,140,574,369.29
  5. Step 5: Solve for x
    x = 12,140,574,369.29/124,878.42
  6. Step 6: Final answer
    x = 97,219.15

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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.