Home / 93,312,100.60-139,968,150.90-85,921,790.20

Finding the Fourth Proportional to 93,312,100.60, 139,968,150.90 and 85,921,790.20

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Solution

The fourth proportional to 93,312,100.60, 139,968,150.90 and 85,921,790.20 is: 128,882,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,312,100.60 : 139,968,150.90 = 85,921,790.20 : x
  2. Step 2: Convert to fraction form
    93,312,100.60/139,968,150.90 = 85,921,790.20/x
  3. Step 3: Cross multiply
    93,312,100.60x = 139,968,150.90 × 85,921,790.20
  4. Step 4: Simplify right side
    93,312,100.60x = 12,026,314,096,311,742
  5. Step 5: Solve for x
    x = 12,026,314,096,311,742/93,312,100.60
  6. Step 6: Final answer
    x = 128,882,685.30

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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.